Home / 5,256.38-7,884.56-2,138.08

Finding the Fourth Proportional to 5,256.38, 7,884.56 and 2,138.08

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Solution

The fourth proportional to 5,256.38, 7,884.56 and 2,138.08 is: 3,207.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,256.38 : 7,884.56 = 2,138.08 : x
  2. Step 2: Convert to fraction form
    5,256.38/7,884.56 = 2,138.08/x
  3. Step 3: Cross multiply
    5,256.38x = 7,884.56 × 2,138.08
  4. Step 4: Simplify right side
    5,256.38x = 16,857,805.68
  5. Step 5: Solve for x
    x = 16,857,805.68/5,256.38
  6. Step 6: Final answer
    x = 3,207.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.